baber/WOPTO huggingface dataset:
Patent GB-935940-A (GB)
Title: Magnetic anti-sag mount for leveler rolls
Inventor: BEARER GERALD LAWRENCE
IPC: B21D1/02
Filed: 1962-08-01
Abstract: 935,940. Straightening. VOSS ENGINEERING CO. Aug. 1, 1962, No. 29500/62. Class 83 (4). A roller leveller includes a plurality of relatively long upper and lower work rolls 4, 5, staggered and nested to receive a strip of sheet metal therebetween, back-up rolls 8, 10 for said work rolls 4, 5 and means for producing a magnetic field, between the ends of and above the upper work rolls 4 at substantially the centre thereof to draw said work rolls against their back-up rolls 8. The means for producing the magnetic field may comprise an electromagnet having a yoke 11 of inverted U-shape having the ends of its poles spaced from the upper work rolls 4 to be out of contact therewith when they are engaging their back-up rolls 8, and coils 12, 13 on said poles for establishing an electromagnetic field across the poles. The yokes 11 are supported on an adjustably mounted non-magnetic cross-piece 14. Permanent magnets may be used.
Patent GB-723634-A (GB)
Title: Improvements in or relating to road paving and the like
Inventor: RIGHI FEDELE
IPC: C04B28/02
Filed: 1952-11-21
Abstract: Roads are coated by admixing differently graded bituminated pebble with sand, cement and water, to form a grout, spreading on the road, ramming until a muddy liquor is expressed and allowing the cement to set.  The bitumen can be applied hot to the pebble or cold, as an emulsion, whilst tar can be used instead of bitumen.
Patent GB-169110-A (GB)
Title: Improvements relating to toy and parquetry blocks
IPC: A63H33/04
Filed: 1920-10-19
Abstract: 169,110. Smith, W. H. Oct. 19, 1920. Addition to 140,312, [Class 20 (iv), Floors &c.]. Building-blocks.-Toy building and parquetrv blocks are shaped in section as isosceles triangles which are multiples or sub-multiples of each other. The triangles are preferably right-angled.
Patent GB-192503-A (GB)
Title: Improvements in corkscrews
IPC: B67B7/04
Filed: 1921-11-07
Abstract: 192,503. Joyce, J. Nov. 7, 1921. Corkscrews.-A corkscrew comprises a rod formed throughout its length into a helical corkscrew portion 1 and rigidly secured to a handle 2 having integral therewith a solid ring 4 for abutment against the mouth of a bottle, the ring being disposed more than half the length of the screw from its point. A cylindrical member 6 fits on to a boss 3 on the handle to protect the screw when not in use.
Patent GB-1112251-A (GB)
Title: Diagnostic composition and method
IPC: G01N33/62
Filed: 1965-07-13
Abstract: A composition for detecting urea in body and other fluids comprises urease, a buffer compound producing ammonium ions and a colorixmetric indicator.  The urease is preferably water-soluble. Specified buffer compounds are ammonium salts of citric, lactic, oxalic, benzoic, acetic, salicylic, stearic, propionic, butyric or phosphoric acids, or mixtures thereof.  Specified indicators are bromthymol blue, bromocresol purple, dichlorosulphonphthalein, 6:8-dinitro-2:4-quinazolinedione, alizarin, and 2-(2:4-dinitrophenylazo) -1- naphthol-3:6-disulphonic acid.  In addition, as colour stabilisers there may be present, albuminoid proteins (bovine albumin, egg albumin) and if desired in addition a heteropolysaccharide (gums arabic, tragacanth or mesquite, Damson or Indian gum); as sensitising agents there may be present an aliphatic amide of M.P. below 150 DEG C. (acetamide, propionamide, butramide, acrylamide); gelatin may be present as thickening agent; polyvinyl alcohol or a solid polyethylene glycol may be present as a wetting agent; and inert dyes may be present to give a colour background. The composition may be in the form of tablets, pellets or powder and may be obtained by lyophilising a solution or suspension of the ingredients.  The ingredients may alternatively be incorporated in a bibulous strip and if desired a dialysing polymeric film coated thereon to permit urea present in a liquid, e.g. blood, to be tested to come into contact with the reagents whilst larger molecules e.g. haemoglobin are held back and do not mask the colour.  Ethyl cellulose dissolved in benzene may be used to form the coating.
Patent GB-171384-A (GB)
Title: A method of and apparatus for cleaning cellulose solutions
IPC: B04B1/00
Filed: 1921-11-08
Abstract: Cellulose solutions such as are used for spinning artificial threads are freed from foreign or undissolved particles by subjecting the solutions to powerful centrifugal force.  The separation may be effected in a rapidly rotating hollow cylinder, bottle-shaped at the upper part and suspended vertically in ball bearings; the solution is introduced through an opening in the base of the cylinder, overflows at the neck and is collected in a surrounding rim, while the particles thrown out by centrifugal force collect as a compact layer along the walls of the cylinder, which is from time to time removed. For effective separation, the value of the centrifugal force must be higher than that ordinarily employed, thus with a cylinder having an internal diameter of 10 cm., the speed of revolution must be 15000 revs. per min., or higher.
Patent GB-427561-A (GB)
Title: Method for the production of hydrogenation products of the follicle hormones
IPC: C07J75/00
Filed: 1933-10-26
Abstract: Reduction products of the follicle hormone, having the formula C18 H24O2 and which may be produced by the process described in Specification 428,132, are further treated with catalytically activated hydrogen under such conditions that the benzene nucleus is hydrogenated.  According to an example, the initial reduction product is dissolved in alcohol and treated with hydrogen at 160 to 170 DEG C. in presence of a nickel-copper catalyst.  After the reaction is complete water is added to precipitate the hydrogenated compound, which is then separated by recrystallization from methanol into crystalline and oily components, both of which are effective in the capon comb test. The initial product (C18H24O2) is stated to be a mixture of two isomers of different melting points.  The Specification as open to inspection under Sect. 91 contains a second example according to which one of the isomeric initial products is hydrogenated in glacial acetic acid solution at room temperature using a platinum oxide catalyst, the product is evaporated to dryness in vacuo, dissolved in ether, the solution washed with aqueous alkali to remove any unhydrogenated portion, and the ether evaporated to leave a resinous product of formula C18H30O2 which may be fractionally distilled under high vacuum to yield crystalline fractions.  This subject-matter does not appear in the Specification as accepted.ALSO:Reduction products of the follicle hormone, having the formula C18H24O2 and which may be produced by the process described in Specification 428,132, are further treated with catalytically activated hydrogen under such conditions that the benzene nucleus is hydrogenated.  According to an example, the initial reduction product is dissolved in alcohol and treated with hydrogen at 160 to 170 DEG  C. in presence of a nickel-copper catalyst.  After the reaction is complete water is added to precipitate the hydrogenated compound, which is then separated by recrystallization from methanol into crystalline and oily components, both of which are effective in the capon comb test. The initial product (C18H24O2) is stated to be a mixture of two isomers of different melting points.  The Specification as open to inspection under Sect. 91 contains a second example according to which one of the isomeric initial products is hydrogenated in glacial acetic acid solution at room temperature using a platinum oxide catalyst, the product is evaporated to dryness in vacuo, dissolved in ether, the solution washed with aqueous alkali to remove any unhydrogenated portion, and the ether evaporated to leave a resinous product of formula C18H30O2 which may be fractionally distilled under high vacuum to yield crystalline fractions.  This subject-matter does not appear in the Specification as accepted.
Patent GB-759923-A (GB)
Title: Improvements in or relating to colour changing mechanism for signalling lamps
Inventor: WHITMAN FRANCIS GEORGE
IPC: F21Y101/00
Filed: 1953-10-28
Abstract: 759,923. Signalling lamps. TREHAWK, MANUFACTURING CO., Ltd. Oct. 13, 1954 [Oct. 28, 1953], No. 29825/53. Class 75(4). A colour changing mechanism for signalling lamps comprises two differently coloured cylindrical light screens 1, 2 screw-threaded one within the other, or otherwise adapted for axial movement relative to each other as a result of their relative rotation, and projecting from one face of the lens 5 and coaxially therewith, one of the screens being rotatable by a knob 7 or other turning means projecting from the other face of the lens. An inverted cup-shaped member 4 secured at the centre of the lens 5 with its open end directed downwardly towards a reflector 3 provides a housing for the coloured screens when both are retracted so that light rays from a source 15 on to the reflector are emitted as white light from the lamp. In the example the knob 7 is secured to a metal key or bar 8 which extends through a slot in the base of the inner screen 1, which also has the shape of an inverted cup, and a helical spring 11 located between a shoulder on the lower end of the key 8 and the base of the screen 1 tends to hold the latter towards the lower face of the lens 5. The exterior surface of the screen 1 is formed with multi-start quick action screw-threads 12 and 13 which co-operate with similar threads on the inside surface of the outer screen 2. Splines 14 or other means are provided to prevent rotation of the outer screen 2 relative to the cup-shaped member 4. In operation, rotation of the knob 7 in one direction from its neutral position causes the outer screen 2 to press against the base of the member 4, while the screw-threads act to project the inner screen 1 downwardly against the action of the spring 11. Rotation of the knob 7 in the opposite direction, however, causes the inner screen 1 to bear against the base of the member 4 and the outer screen 2 to be projected to surround the light source 15. In the example the device is applied to a battery lamp provided with a lamp bulb 15 ; it may, however, be adapted for use with other light sources and irrespective of the sizes of the lens and reflector. The screens may be of transparent plastic material and may be coloured red or green respectively, or other colours.
Patent GB-447103-A (GB)
Title: Improvements in or relating to illuminated display apparatus
IPC: G09F13/00
Filed: 1935-10-29
Abstract: 447,103. Illuminated signs. SANDERS, E. A., 2, Bastards Gate, Padleigh Turning, and STINSON, C. A. R., 29, Wells Road, both in Bath. Oct. 29, 1935, No. 29848. [Class 3 (ii)] A display apparatus comprises a transparent or translucent screen 2 bearing a legend, picture, &c., a strip light source 3, which may be a discharge tube, and a cylindrical lens 4 adapted to project and distribute the light substantially uniformly on the screen. A reflector 5, which may itself form part of the casing, may be disposed behind the light source. The lens may be of circular, or part circular, or other section, and may be of glass or the like, or be a glass vessel containing liquid. In a further modification, the lens is built up, as shown in Fig. 4, its back is mirrored, and the source is disposed in a recess in its back.
Patent GB-395553-A (GB)
Title: Improvements in anti-theft devices for motor vehicles
IPC: B60R25/00
Filed: 1932-10-25
Abstract: 395,553. Preventing unauthorized use of motor vehicles. FRANCK, T., 70A, Highbury New Park, WALKER, J. G., 70, Highbury New Park, and GIBSON, A. E., 109, Durham Road, Finsbury Park, both in London. Oct. 25, 1932, No. 29884. [Class 79 (iii).] To prevent unauthorized use of a motor vehicle the transmission clutch is held in the disengaged position by means operatively connected to a lock on or in the vicinity of the dashboard, the key of which serves to actuate the means as well as the lock. A barrel-type lock 9 on the dashboard 8 is coupled directly to a rod 10 extending through a tube 6 and terminating beneath the floorboards 4 in an arm 12 adapted, upon rotation of the rod, to engage lugs 2 on the clutch pedal 1 to retain it in the depressed position, the key rotating the rod 10 with the barrel of the lock. Alternatively, the rod 10 may be extended into the clutch casing, the arm 12 then acting upon the movable clutch element. The lugs 2 may be formed on a sheet metal member 2a bolted &c. to the pedal arm or a lug or lugs may be formed integrally with the arm. Alternatively a notch may be cut in the arm or the locking arm 12 may be arranged so that it can be moved to engage the radial portion 3a of the pedal arm. A protective casing 13 may be riveted &c. to the underside of the floorboards.
Patent GB-772131-A (GB)
Title: Improvements in and relating to air conditioning apparatus
IPC: F24F13/22
Filed: 1955-10-20
Abstract: 772,131. Methods of ventilation. GENERAL ELECTRIC CO. Oct. 20, 1955 [Oct. 21, 1954], No. 30047/55. Class 137 [Also in Group XIII]  In an air-conditioning apparatus having a first blower 10 for directing room air through the evaporator 16 of a refrigerating system, and a second blower 11 for directing ambient air through the condenser 17 of the system, the condensate formed on the evaporator is collected in a sump 23 from where it is sprayed into the airstream issuing from the second blower 11 by tubular members 26, 27 attached to the second blower. The condensate is led into the sump 23 by a trough 21, beneath the evaporator, and a pipe 22. The tubular members 26, 27 depend from the blower 11 and have an inlet opening 32 facing in the direction of rotation of the blower. The sump water is urged outwardly along the tube and up the vertical section 33 by centrifugal force. On emerging at 34, the curved member 35 causes the stream to be substantially atomized. The length of the section 33 is such that the descending droplets have to fall through most of the airstream thus increasing the efficiency of their dispersal.
Patent GB-389173-A (GB)
Title: An improved process for producing celluloid-like artificial masses
IPC: B29C67/24
Filed: 1931-10-30
Abstract: Celluloid-like masses are obtained by working up condensation products of polyvinyl alcohols and aldehydes, with softeners, fillers, high boiling solvents, colour, &c., as desired, in the manner customary in celluloid manufacture, viz. gelatinizing, kneading and hot pressing.  In examples, 100 kgms. of polyvinyl alcohol formaldehyde condensation product are gelatinized with 60 litres of alcohol and 30 litres of benzol at 30 DEG  C.  The product is coloured on hot rolls and the major portion of solvent squeezed out.  It is then heated in a press at 80 DEG  C. and 20 kgms. per sq. cm. for 6 hours, cooled and cut into foils, (2) 90 kgms. of the same initial product are galatinized at 80 DEG  C. with 10 kgms. p-toluene sulphonamide, 60 litres of alcohol and 30 litres of benzol and treated as in (1).  Foils thus made are ductile and pliable down to -15 DEG  C.  Hollow articles such as dolls may be readily blown from the foils.  Specifications 337,806, [Class 22, Cements &c.], 378,608 and 383,045, are referred to.
Patent GB-210188-A (GB)
Title: Improvements relating to the spring suspension mechanism of motor road vehicles
IPC: B60G9/00
Filed: 1922-11-04
Abstract: 210,188. Melen, G. F., and Melen, H. C. Nov. 4, 1922. Radius rods.-Relates to spring suspensions of road vehicles and particularly to the springing of the front pair of wheels of a three-wheeled carrier vehicle which is mechanically or otherwise propelled and has the side members of the chassis cranked inwardly. The radius bars 4 are cranked along their length to conform to the inward cranking 8 of the side members 11 of the chassis. The bars 4 are of flat section metal pivoted flatwise to the chassis at 7 and twisted through a right angle at 6 near the axle 1 so as to support the axle by means of a flanged lug 2 thereon.
Patent GB-641985-A (GB)
Title: Improved means for giving remote indications of position, such as level, height and similar quantities
IPC: G01C17/26
Filed: 1947-11-14
Abstract: 641,985. Electric selective signalling and indicating systems. MEASUREMENT, Ltd., and HEWLETT, S. J. Nov. 14, 1947, No. 30274. [Class 40 (i)] In an electric remote indication system variations in level, height or a similar quantity control the rotation of a shaft c carrying semicircular contacts d, d<SP>1</SP> which are insulated therefrom and from each other, and are respectively connected through slip-rings S, S<SP>1</SP> with the forward and reverse operating coils h, h<SP>1</SP> of a step-by-step rotary driving device operated by D.C. pulses of alternate polarity, which incorporates a permanent magnet rotor and rotates an earthed contact arm f, over the semicircular contacts. A remote receiver B comprises an indicator shaft j driven by a similar rotary device whose operating coils i, il are connected in series with the respective transmitter coils h, h<SP>1</SP> and supplied with D.C. pulses of alternate polarity from an earthed motor driven camoperated commutator C. Rotation of the semicircular contacts d, d<SP>1</SP> relatively to the contact arm f excites either coils h, i or h<SP>1</SP>, i<SP>1</SP> to rotate the indicator shaft through the same angle as the shaft c, and return the contact arm to the insulation between the semicircular contacts to stop the drive devices. The transmitter operation may be delayed relatively to that of the receiver by shading loops on the coil poles, and the indicator shaft may operate a control device.
Patent GB-825196-A (GB)
Title: Mechanism for transmitting motion through a physical barrier
IPC: G21C7/14
Filed: 1957-09-27
Abstract: 825,196. Nuclear reactors. ATOMIC ENERGY OF CANADA Ltd. Sept. 27, 1957 [Oct. 25, 1956], No. 30339/57. Class 39(4). An arrangement for transmitting mechanical motion through a barrier confining a fluid comprises a vessel serving to maintain a first fluid at a pressure different from that surrounding the vessel ; a movable instrumentality within the vessel ; a hollow, closed, protruding stub mounted to extend away from the vessel, the interior of the stub defining both a continuation of the interior of the vessel and a closed chamber having a common wall with the vessel, the chamber containing a second fluid at substantially the same pressure as the first fluid ; a generator of motive power in the chamber ; a mechanical connection between the generator and the instrumentality and extending through the common wall ; a fluidtight seal in the wall surrounding the mechanical connection ; and means sealed in a pressurefluid-tight manner into a wall of the chamber to extend to the exterior thereof for the connection of the generator to a source of power. Fig. 1 shows an arrangement for controlling the movement into and out of a nuclear reactor of a control rod 3 in the form of a hollow cylinder. Vertical sliding movement of the cylinder 3 is effected by means of a central shaft 4 carrying a helical groove that cooperates with a bearing member 7 of the recycling ball type secured by an intermediate plate to the inner periphery of the cylinder. A guide member 9 of U cross-section extends downwardly into the cylinder 3 to prevent it rotating; roller bearings 10 provide a sliding connection between the guide and the cylinder. The guide 9 is secured at its upper end to a liner 14 which also carries a pair of roller bearings that support a bushing 18 surrounding the shaft 4. At its upper end the shaft 4 carries one half 19 of a dog clutch, the other half of which is mounted on a shaft 21 which passes through a piston 22 to form the rotor shaft of an electric motor 24. The piston 22 forms the boundary between the reactor, which may be filled with heavy water at a pressure of 1000 p.s.i., and the motor compartment which may be filled with a hydrocarbon or a silicose oil. The piston has a limited freedom of movement to allow for changes in volume due to temperature pressure or leakage. Within the motor compartment is mounted a potentiometer 31 driven by a gear train from the shaft 21 ; leads from the potentiometer 31 pass through the upper wall 25 to provide an external indication of the position of the control rod. Electrical connections to the motor also pass through the wall 25. In an alternative arrangement, Fig. 6 (not shown), a magnetic clutch is provided between the motor shaft and the shaft driving the potentiometer and the control rod. In a modification of this, Fig. 7 (not shown), the electric motor is replaced by a hydraulic motor. In a further arrangement, Fig. 8 (not shown), the control rod is actuated by a solenoid.
Patent GB-207825-A (GB)
Title: Improvements in variometers
IPC: H01F21/00
Filed: 1923-12-03
Abstract: 207,825. pelletier, G. Dec. 1, 1922, [Convention date]. Tuning apparatus, construction of; coupling aerial and detector circuits; thermionic valves. connections of.-.A variometer has fixed and movable windings formed of several independent sections of flat form each comprising one or more layers wound parallel to a diametral plane. A framework is formed by two cheeks 1 of insulating material spaced by cross-pieces 2 and former with notches 3 to receive the parallel sections 4 of the stator winding. Inside this framework is arranged a disc 5 of insulating material parallel with the cheeks 1 and mounted on a rotatable shaft 7. The disc 5 is formed with notches to receive the parallel sections of the rotor winding. Two separate windings may be wound on the stator and on the rotor. The rotor and stator windings are brought out to separate terminals, and may be combined with a series of fixed condensers to form a unit. Two of such units may be connected to form a circuit with variable inductance variably coupled to the aerial inductance in a wireless system. A series of four units may be connected with a thermionic valve in a wireless receiving apparatus to give a primary circuit with variable inductance variably coupled to a secondary circuit with variable inductance connected with the grid circuit of the valve, in the plate circuit of which is an inductance variably coupled with the secondary inductance. Units may be otherwise connected, for example to form resonance amplifiers. Several units may be mechanically coupled by providing the shafts with coupling sleeves, so as to form a multi-stage amplifier. A unit with double windings may be employed for the generation of continuous waves, one pair of stator and rotor coils being in the grid circuit and the other in the plate circuit, the coupling between these circuits therefore remaining constant.